Heating device.



P. s. MARTIN. HEATING DEVICE.

APPLICATION FILED SEPIZZZ, I9I3- Patented Aug. 14, 1917.

;11/2 III 1W Perry 5- Martin UNITED STATES FATE OFFICE.

PERRY S. MARTIN, 0F BROADWAY, VIRGINIA, ASSIGNOR, BY MESNE ASSIGNMENTS, TO NEWTOWN GIANT INCUBATOR CORPORATION, OF HARRISONBURG, VIRGINIA, A

CORPORATION OF VIRGINIA.

HEATING DEVICE.

Application filed September 22, 1913.

To all whom it may concern:

Be it known that I, PERRY S. MAn'rIN, of Broadway, in the county of Rockingham and State of Virginia, have invented certain new and useful Improvements in Heating Devices, whereof the following is a specification, reference being had to the accompanying drawings.

My invention relates more particularly to a heater which is used in connection with a circulatory system having an automatic thermostat by means of which the temperature of the hot water is constantly malntained at a desired point. This is usually effected through the medium of a reservolr or stand-pipe in free connection with the otherwise closed hot water system so that the height of the water in the reservoir varies with the expansion or contraction of the volume of the water in the system, dependent upon its temperature. o

A float, or other device in this reservoir communicates motion to a vertical slide rod which is connected to and actuates the dampers controlling the direct draft of the heater and also the check draft therefor.

An object of the invention is to provide a heater of the above character which is so constructed that the fuel is fed to the heater from a storage magazine and the rod, referred to above controlled by the expansion and contraction of the water in the system, controls the direct draft of the fuel chamber and also the check draft for the pipe or stack.

A further object of the mvention is to provide a device of the above character wherein a single damper may accomplish the double purpose of controlling the direct draft and the check draft for the heater.

These and other objects will in part be obvious, and will in part be hereinafter more fully disclosed.

In the drawings which show by way of illustration one embodiment of t e invention, the figure is a vertical section through a heater embodying my improvements.

My improved heater consists, generally, of a fuel chamber to which fuel is supplied from a storage magazine. This magazine extends down into the fuel chamber in the well known manner in thistype of heater. Said heater is provided with a passage or Specification of Letters Patent.

.nects with the combustion chamber.

Patented Aug. 14, 1917.

Serial No. 791,015.

chamber between the magazine and the walls of the heater which allows the combustion gases to pass from the fuel upward and outward. A flue leads outward from the heater and is connected with this chamber at the top of the heater, and this flue is connected with the usual pipe or stack. The flue is provided with a cross partition which is formed with an opening and one wall of the flue is also provided with an opening. These openings are in alinement and a single damper cooperates with the two openings to control the direct draft and the check draft. This damper is actuated by a rod control, as is usual in this heating system by expansion or contraction of the Water in the system.

Referring more in detail to the drawing, my improved heater consists of a base 1, on which is mounted the body portion proper of the heater 2, and this body portion of the heater is formed with a combustion chamber 3. Surrounding the combustion chamber and extending from the bottom to the top thereof is a water jacket 4. The water jacket 4, is connected to pipes which lead to the circulatory system. One of these pipes is indicated at 5, in the drawing. The water circulates through the water jacket in the heater, passes out through one of the pipes, and is returned through the other. The pipe 5, is shown in the drawing as the intake pipe. At the top of the heater is a magazine 6, which is provided with a cone-shaped bottom 7, having a depending sleeve 8, which supplies fuel to the combustion chamber. This magazine is "of the usual type so far as receiving and supplying the fuel to the combustion chamber.

The bottom 7, of the magazine is spaced from the inner wall of the heater so as to form a chamber 9. This chamber 9, con- Extending laterally from the heater is a casing or flue 10, which supports the stack or pipe 11, leading to the chimney. This flue 10, is connected with the chamber 9, so that the combustion gases passing from the fuel chamber will pass into the chamber 9, and thence through the flue 10, to the pipe or stack 11. The upper wall of the'fiue or casing 10, is formed with an opening 12, which leads to the outer air. This flue or casing 10, is also provided with a horizontal plate 13, which is connected by a web 14, to one wall of the flue and by a web 15, to the other wall of the flue and this plate 13, with the webs 1 1, and 15, form a cross partition dividing or closing the flue. The plate 13, is provided with an opening 16. The opening 16, and the opening 12, are in alinement and preferably of substantially the same diameter. A disk-shaped damper 17, is located between the plate 13, and the upper wall of the flue or casing 10. This diskshaped damper is slightly larger in diameter than the openings 12, and 16. A rod 18, is connected to the disk-shaped damper at one end and the other end of this rod is connected to the float 19, in the reservoir 20, at the top of the stand pipe 21. The damper 17, is moved up and down by the expansion and contraction of the water in the system. When'the water in the system cools below a certain point, it will contract and thus move the rod 18, upward so as to close the check draft and open the direct draft. When the water expands, the rod will be moved downward so as to close the direct draft and open the check draft, thus reducing the heat.

It will be apparent from the above construction that when the disk 17 moves downward, the space between said disk damper and the plate 16, will be decreased which will reduce the direct draft, while the space between this damper and the upper wall of the flue or casing 10, will increase and thereby allow more fresh air to pass directly into the pipe or stack. On a movement of the damper in the opposite direction, the reverse conditions are brought about.

From the above description, it will be apparent that I have provided a heater wherein the fuel chamber may be kept uniformly and continuously supplied with fuel. This continuous supply of fuel contributes to maintain a uniform temperature of water in the water jacket. I have also provided a construction wherein a single damper may be used to control the direct draft and the check draft and by this simple construction, I am able to maintain a more uniform temperature,

It will be obvious that minor changes in the details of construction and arrangement of parts may be made without departing from the spirit of the invention as set forth in the appended claims.

Having thus described my invention, I claim:

1. In a heater, the combination of a combustion chamber and a flue; said heater having an outlet aperture, through which the heated products of combustion must pass, and a check draft aperture in proximity to said outlet aperture, said apertures being in opposition to each other; a single damper adapted by its reciprocation to alternatively control both apertures and thermostatic means for controlling said damper.

2. A heater having a combustion chamber; a passageway leading from said combustion chamber, provided with a valve seat, through which the heated products of combustion must pass, and a check draft aperture in opposition to said valve seat and communicating with said passageway; a single damper adapted by its reciprocation to alternatively control said valve seat and the check draft aperture, whereby the draft of the heater is alternatively throttled and checked; and thermostatic means for controlling said damper.

3. In a heater, the combination of a combustion chamber and a flue, said heater having a passageway leading from the combustion chamber to the flue, and an opening leading from the atmosphere to the flue; a valve seat located in said passageway in such a position that the heated products of combustion must pass through it, said opening being in alinement with the valve seat and disposed beyond it in the direction of movement of the fuel gases, a single damper disposed between the opening and the valve seat and adapted to cotiperate therewith for throttling the main draft of the heater after it leaves the combustion chamber, and at the same time opening the check draft of the flue when moved in one direction, and vice versa, when moved in the other direction, and thermostatic means for controlling the damper.

4. A hot water heater comprising a combustion chamber, a water jacket surrounding said combustion chamber, a passage for the combustion gases, aflue connected with said passage, a cross partition in said flue having an opening therethrough, one wall of said flue having an opening therein in alinement with the opening in the cross partition, a member for closing the opening in the cross partition or the opening in the wall of the flue, and devices operated by the expansion and contraction of the water in the water system for controlling said member.

5. A hot water heater comprising a combustion chamber, a flue leading from said combustion chamber, a cross partition in said flue having a horizontal plate, an open ing in said horizontal plate, an opening in the upper wall of said flue beyond said plate, said openings being in alinement, a disk damper disposed between said plate and the upper wall of the flue and coiipcrating with each opening, said damper beings adapted to be raised and lowered by the expansion and contraction of the water in the water system.

6. A hot water heater comprising a combustion chamber, a flue connected with said combustion chamber, a horizontal plate in said flue, webs extending from said plate to the upper and lower walls of the flue and forming with said plate a cross partition, said plate having a central opening therein, the upper wall of said flue directly abov said plate having an opening therein 0 similar dimensions .to the opening in said plate and in alinement therewith, a disk damper disposed between said horizontal plate and the upper wall of the flue and adapted to cooperate with each of said. openings for controlling a direct draft and a check draft for said combustion chamber.

In testimony whereof, I have hereunto signed my name at Philadelphia, Pennsylvania, this eighteenth day of September,

PERRY S. MARTIN. Witnesses:

JAMES H. BELL, E. L. FULLERTON. 

